Vista - Intel graphics 82845G

I had trouble getting vista Beta 2 to load the correct driver for an Intel
Graphic 82845G card.

At first, both in WinPE and Vista, it loads the default Sandard VGA Display
adapter which makes it looks like #$%#%.

Then, if i enter the Correct driver into the installaion of vista (Using
Driver Path on the unattend.xml file, or Offline installing it through PEIMG
/INF command), it first, load the Standard VGA, and if i choose to upgrade
the driver automatically, it finds and installs the correct driver.

How can i automate it for use throughout my organization (I only having
troubles with this specific driver which Vista is convinced that it's a
"Standard VGA Adapter)

Or.